#331C9B#331C9B

#331C9B is a dark, vivid violet. Relative luminance 0.039; OKLCH L 36.0% C 0.188 H 279.5°. Best body text is #FFFFFF at 11.80:1 contrast (WCAG AA passes).

Color values

HEX	#331C9B
RGB	rgb(51, 28, 155)
HSL	hsl(251, 69%, 36%)
HSV	hsv(251, 82%, 61%)
CMYK	cmyk(67.1%, 81.9%, 0%, 39.2%)
CIE-LAB	lab(23.34, 46.74, -64.24)
CIE-LCH	lch(23.34, 79.44, 306.04°)
OKLab	oklab(36.01% 0.0311 -0.1855)
OKLCH	oklch(36.01% 0.188 279.5)
XYZ	xyz(7.6950, 3.9002, 31.3513)
Luminance	0.0390 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#331C9B #849B1C

analogous

#1C449B #331C9B #721C9B

triadic

#331C9B #9B331C #1C9B33

tetradic

#331C9B #9B1C44 #849B1C #1C9B72

square

#331C9B #9B1C44 #849B1C #1C9B72

split-complementary

#331C9B #9B721C #449B1C

monochromatic

#110933 #221367 #331C9B #4425CF #6B52E0

Accessibility & contrast

On white

11.80

#331C9B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#331C9B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #331C9B

11.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##331C9B	#FFFFFF	#000000	##FFFFFF
##331C9B	1.00	11.80	1.78	11.80
#FFFFFF	11.80	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C9E

Deuteranopia (green-blind)

#003399

Tritanopia (blue-blind)

#00435C

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #331c9b;
/* rgb */ color: rgb(51, 28, 155);
/* oklch */ color: oklch(36.0% 0.188 279.5);

Tailwind

colors: {
  custom: {
    50: '#7a5dba',
    500: '#331c9b',
    950: '#000000',
  },
}

SCSS

$custom: #331c9b;
$custom-light: #7a5dba;
$custom-dark: #000000;

JSON

{
  "hex": "#331c9b",
  "rgb": {
    "r": 51,
    "g": 28,
    "b": 155
  },
  "hsl": {
    "h": 250.866,
    "s": 69.399,
    "l": 35.882
  },
  "oklch": {
    "l": 0.36014,
    "c": 0.18808,
    "h": 279.5
  },
  "luminance": 0.03901
}

Semantic roles & 50–950 ramp

primary

#331C9B

secondary

#AEC350

accent

#EC3CCC

background

#F8F5FB

surface

#EFE9F6

border

#CAC5D0

text

#0B0412

muted

#7C7981

Preview Lab

Preview with #331C9B

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →